<template>
  <div class="create-or-update">
    <el-card class="box-card">
      <div slot="header" class="clearfix">
        <el-steps :active="activeStep" simple>
          <el-step
            v-for="(item, index) in steps"
            :key="index"
            @click.native="activeStep = index"
            :title="item.title"
            :icon="item.icon"
          ></el-step>
        </el-steps>
      </div>
      <el-form label-width="80px">
        <div v-show="activeStep === 0">
          <el-form-item label="课程名称">
            <el-input v-model="course.courseName"></el-input>
          </el-form-item>
          <el-form-item label="课程简介">
            <el-input v-model="course.brief"></el-input>
          </el-form-item>
          <el-form-item label="课程概述">
            <el-input
              style="margin-bottom: 10px"
              v-model="course.previewFirstField"
              placeholder="概述1"
              type="textarea"
            ></el-input>
            <el-input
              v-model="course.previewSecondField"
              placeholder="概述2"
              type="textarea"
            ></el-input>
          </el-form-item>
          <el-form-item label="讲师姓名">
            <el-input v-model="course.teacherDTO.teacherName"></el-input>
          </el-form-item>
          <el-form-item label="讲师简介">
            <el-input v-model="course.teacherDTO.description"></el-input>
          </el-form-item>
          <el-form-item label="课程排序">
            <el-input-number
              v-model="course.sortNum"
              label="描述文字"
            ></el-input-number>
          </el-form-item>
        </div>
        <div v-show="activeStep === 1">
          <!--
            v-model本质还是父子组件通信
            1. 它会给子组件传递一个名字叫value的数据 props
            2. 默认监听input事件 修改绑定数据 自定义事件
           -->
          <el-form-item label="课程封面"
            ><course-image v-model="course.courseListImg" />
          </el-form-item>
          <el-form-item label="介绍封面"
            ><course-image v-model="course.courseImgUrl" />
          </el-form-item>
        </div>
        <div v-show="activeStep === 2">
          <el-form-item label="售卖价格">
            <el-input v-model="course.discounts">
              <template slot="append">元</template>
            </el-input>
          </el-form-item>
          <el-form-item label="商品原价">
            <el-input v-model="course.price">
              <template slot="append">元</template></el-input
            >
          </el-form-item>
          <el-form-item label="销量">
            <el-input v-model="course.sales">
              <template slot="append">单</template></el-input
            >
          </el-form-item>
          <el-form-item label="活动标签">
            <el-input v-model="course.discountsTag"></el-input>
          </el-form-item>
        </div>
        <div v-show="activeStep === 3">
          <el-form-item label="限时秒杀开关">
            <el-switch
              v-model="course.activityCourse"
              active-color="#13ce66"
              inactive-color="#ff4949"
            ></el-switch>
          </el-form-item>
          <template v-if="course.activityCourse">
            <el-form-item label="开始时间">
              <el-date-picker
                type="date"
                v-model="course.activityCourseDTO.beginTime"
                placeholder="选择日期时间"
                value-format="yyyy-MM-dd"
              >
              </el-date-picker>
            </el-form-item>
            <el-form-item label="结束时间">
              <el-date-picker
                type="date"
                v-model="course.activityCourseDTO.endTime"
                placeholder="选择日期时间"
                value-format="yyyy-MM-dd"
              >
              </el-date-picker>
            </el-form-item>
            <el-form-item label="秒杀价">
              <el-input v-model="course.activityCourseDTO.amount">
                <template slot="append">元</template></el-input
              >
            </el-form-item>
            <el-form-item label="秒杀库存">
              <el-input v-model="course.activityCourseDTO.stock">
                <template slot="append">个</template></el-input
              >
            </el-form-item>
          </template>
        </div>
        <div v-show="activeStep === 4">
          <el-form-item label="课程详情">
            <!-- <el-input
              v-model="course.courseDescriptionMarkDown"
              type="textarea"
            ></el-input> -->
            <text-editor v-model="course.courseDescriptionMarkDown" />
          </el-form-item>
          <el-form-item label="是否发布">
            <el-switch
              v-model="course.status"
              active-color="#13ce66"
              inactive-color="#ff4949"
              :active-value="1"
              :inactive-value="0"
            ></el-switch>
          </el-form-item>
          <el-form-item>
            <el-button type="primary" @click="handleSave">保存</el-button>
          </el-form-item>
        </div>
        <el-form-item v-if="activeStep >= 0 && activeStep < 4">
          <el-button @click="activeStep++">下一步</el-button>
        </el-form-item>
      </el-form>
    </el-card>
  </div>
</template>

<script lang="ts">
import Vue from "vue";
import { saveOrUpdateCourse, getCourseById } from "@/services/course";
import CourseImage from "./CourseImage.vue";
import TextEditor from "@/components/textEditor/index.vue";
export default Vue.extend({
  name: "CreateOrUpdate",
  components: {
    CourseImage,
    TextEditor,
  },
  props: {
    isEdit: {
      type: Boolean,
      default: false,
    },
    courseId: {
      type: [String, Number],
    },
  },
  data() {
    return {
      activeStep: 0,
      steps: [
        { title: "基本信息", icon: "el-icon-edit" },
        { title: "课程封面", icon: "el-icon-edit" },
        { title: "销售信息", icon: "el-icon-edit" },
        { title: "秒杀活动", icon: "el-icon-edit" },
        { title: "课程详情", icon: "el-icon-edit" },
      ],
      imageUrl: "",
      isSeckill: false,
      course: {
        // id: 0,
        courseName: "",
        brief: "",
        teacherDTO: {
          // id: 0,
          // courseId: 0,
          teacherName: "",
          teacherHeadPicUrl: "",
          position: "",
          description: "",
        },
        courseDescriptionMarkDown: "",
        price: 0,
        discounts: 0,
        priceTag: "",
        discountsTag: "",
        isNew: true,
        isNewDes: "",
        courseListImg: "",
        courseImgUrl: "",
        sortNum: 0,
        previewFirstField: "",
        previewSecondField: "",
        status: 0,
        sales: 0,
        activityCourse: true,
        activityCourseDTO: {
          // id: 0,
          // courseId: 0,
          beginTime: "",
          endTime: "",
          amount: 0,
          stock: 0,
        },
        autoOnlineTime: "",
      },
    };
  },
  created() {
    if (this.isEdit) {
      this.loadEdit();
    }
  },
  methods: {
    async handleSave() {
      const { data } = await saveOrUpdateCourse(this.course);
      if (data.code === "000000") {
        this.$message.success("保存课程成功");
        this.$router.back();
      }
    },
    async loadEdit() {
      const { data } = await getCourseById(this.courseId);
      if (data.code === "000000") {
        this.course = data.data;
      }
    },
  },
});
</script>

<style lang="scss" scoped>
.el-step {
  cursor: pointer;
}
</style>